Test Data For PMP20058 3/17/2016 - Texas Instruments · Test Data For PMP20058 3/17/2016 . Test...

Test Report PMP20058

1 March 17, 2016

Test Data

For PMP20058

3/17/2016


2 March 17, 2016

Table of Contents 1. Design Specifications ............................................................................................................................ 3

2. Circuit Description ................................................................................................................................. 3

3. PMP20058 Board Photos ...................................................................................................................... 3

4. Efficiency ............................................................................................................................................... 5

4.1 Efficiency Chart ................................................................................................................................... 5

4.2 Efficiency Data............................................................................................................................... 6

5 Thermal Images .......................................................................................................................................... 9

6 Waveform ................................................................................................................................................ 11

6.1 Switching Waveform and Output Ripple .......................................................................................... 11

6.2 Load Transient ................................................................................................................................... 12

6.3 Start Up ............................................................................................................................................. 14

6.4 Short Circuit ...................................................................................................................................... 15

6.5 Bode Plot ........................................................................................................................................... 17


3 March 17, 2016

1. Design Specifications Vin Minimum 8VDC

Vin Maximum 18VDC

Vout +54VDC @ 1.5A

Nominal Switching Frequency ≈ 100KHz

2. Circuit Description PMP20058 is an isolated flyback converter utilizing the LM5022 for industrial applications. This

design has a minimum operating input voltage of 8V and a maximum input voltage of 18V. The test

report here is for 8V, 12V and 18Vin/~54V out @ 1.5A of load current. Switching frequency is set to

100kHz. A custom Coilcraft transformer is used in this test report for all the scope capture.

3. PMP20058 Board Photos Board Dimensions: 101.6mm x 35.56mm

Coilcraft Board Photo (Top)


4 March 17, 2016

Pulse Board Photo (Top)

Board Photo (Bottom)


5 March 17, 2016

4. Efficiency

4.1 Efficiency Chart

45.000

50.000

55.000

60.000

65.000

70.000

75.000

80.000

85.000

90.000

95.000

0.000 0.500 1.000 1.500

Effi

cie

ncy

(%

)

Iout (A)

PMP20058 Efficiency Coilcraft UA7962-AL

8Vin

12Vin

18Vin

45.000

50.000

55.000

60.000

65.000

70.000

75.000

80.000

85.000

90.000

95.000

0.000 0.200 0.400 0.600 0.800 1.000 1.200 1.400 1.600

Effi

cie

ncy

(%)

Iout(A)

PMP20058 Efficiency Pulse PA4621NL REVB

8Vin

12Vin

18Vin


6 March 17, 2016

4.2 Efficiency Data Coilcraft NA7962-AL

Vin Iin Pin Vout Iout Pout Losses Efficiency

8.003 0.074 0.595 53.311 0.000 0.011 0.585 1.791

8.002 0.800 6.399 53.311 0.102 5.459 0.940 85.314

8.002 1.508 12.067 53.310 0.203 10.795 1.271 89.464

8.002 2.231 17.854 53.309 0.302 16.121 1.734 90.288

8.002 2.944 23.558 53.308 0.402 21.446 2.112 91.035

8.001 3.665 29.327 53.308 0.502 26.766 2.561 91.268

8.001 4.400 35.204 53.307 0.602 32.086 3.119 91.141

8.000 5.149 41.196 53.307 0.702 37.411 3.785 90.811

7.999 5.909 47.270 53.306 0.802 42.741 4.529 90.419

7.999 6.678 53.414 53.304 0.902 48.064 5.349 89.985

7.998 7.457 59.637 53.303 1.002 53.383 6.254 89.513

7.997 8.248 65.955 53.301 1.101 58.706 7.249 89.009

7.995 9.049 72.350 53.300 1.201 64.013 8.337 88.477

7.994 9.865 78.860 53.298 1.301 69.346 9.513 87.937

7.993 10.697 85.501 53.297 1.401 74.674 10.826 87.338

7.991 11.543 92.238 53.295 1.501 79.990 12.248 86.722


12.005 0.056 0.672 53.410 0.000 0.011 0.662 1.589

12.005 0.534 6.415 53.408 0.102 5.464 0.952 85.164

12.005 1.005 12.067 53.406 0.202 10.809 1.258 89.577

12.004 1.477 17.728 53.404 0.302 16.144 1.584 91.067

12.004 1.945 23.351 53.402 0.402 21.478 1.872 91.982

12.003 2.417 29.011 53.401 0.502 26.807 2.204 92.404

12.003 2.899 34.803 53.399 0.602 32.135 2.667 92.336

12.003 3.369 40.445 53.397 0.702 37.474 2.971 92.655

12.003 3.843 46.132 53.396 0.802 42.818 3.314 92.816

12.003 4.321 51.867 53.393 0.902 48.150 3.717 92.834

12.003 4.803 57.649 53.391 1.002 53.476 4.172 92.763

12.003 5.289 63.483 53.389 1.101 58.802 4.681 92.627

12.004 5.778 69.354 53.386 1.201 64.127 5.227 92.464

12.004 6.271 75.270 53.384 1.301 69.468 5.802 92.292

12.004 6.766 81.214 53.381 1.401 74.807 6.407 92.112

12.005 7.262 87.182 53.377 1.501 80.130 7.051 91.912


18.006 0.038 0.686 53.295 0.000 0.011 0.675 1.554


7 March 17, 2016

18.005 0.360 6.487 53.296 0.102 5.457 1.030 84.125

18.005 0.673 12.119 53.297 0.203 10.793 1.327 89.054

18.005 0.988 17.787 53.298 0.302 16.117 1.670 90.612

18.004 1.306 23.508 53.298 0.402 21.447 2.061 91.232

18.004 1.617 29.120 53.299 0.502 26.772 2.348 91.935

18.004 1.938 34.886 53.300 0.602 32.086 2.799 91.975

18.003 2.252 40.537 53.300 0.702 37.417 3.120 92.304

18.003 2.576 46.386 53.301 0.802 42.752 3.633 92.167

18.003 2.883 51.897 53.301 0.902 48.083 3.814 92.650

18.002 3.216 57.890 53.300 1.002 53.396 4.494 92.236

18.003 3.533 63.610 53.300 1.102 58.721 4.890 92.313

18.002 3.852 69.351 53.299 1.202 64.039 5.312 92.341

18.002 4.175 75.151 53.299 1.302 69.374 5.777 92.312

18.002 4.499 80.984 53.298 1.401 74.697 6.288 92.236

18.002 4.824 86.841 53.297 1.502 80.025 6.816 92.151

Pulse PA4621NL

Vin(V) Iin(A) Vout(V) Iout(A) Pin(W) Pout(W) Losses(W) Efficiency

8.003 0.065 53.276 0.000 0.523 0.011 0.513 2.036

8.003 0.784 53.277 0.102 6.271 5.429 0.842 86.569

8.003 1.489 53.278 0.202 11.915 10.762 1.153 90.326

8.003 2.192 53.278 0.302 17.546 16.085 1.461 91.672

8.002 2.922 53.279 0.402 23.386 21.407 1.979 91.540

8.002 3.638 53.279 0.502 29.111 26.725 2.386 91.803

8.001 4.364 53.279 0.601 34.916 32.042 2.874 91.768

8.001 5.104 53.279 0.701 40.835 37.365 3.470 91.502

8.000 5.856 53.280 0.801 46.848 42.698 4.150 91.142

8.000 6.615 53.279 0.901 52.917 48.021 4.897 90.747

7.999 7.382 53.279 1.001 59.045 53.338 5.707 90.334

7.998 8.158 53.279 1.101 65.244 58.660 6.584 89.909

7.997 8.947 53.278 1.201 71.555 63.977 7.578 89.409

7.993 9.759 53.278 1.301 78.005 69.304 8.701 88.845

7.994 10.580 53.277 1.401 84.575 74.630 9.945 88.241

7.991 11.417 53.275 1.501 91.236 79.951 11.285 87.631


12.006 0.047 53.278 0.000 0.569 0.011 0.558 1.872

12.005 0.525 53.278 0.102 6.304 5.429 0.875 86.121

12.005 0.993 53.279 0.202 11.920 10.757 1.163 90.243


8 March 17, 2016

12.005 1.463 53.280 0.302 17.559 16.085 1.474 91.608

12.005 1.936 53.281 0.402 23.243 21.408 1.835 92.107

12.005 2.415 53.281 0.502 28.987 26.731 2.256 92.217

12.005 2.883 53.281 0.601 34.614 32.043 2.570 92.574

12.005 3.367 53.282 0.701 40.420 37.372 3.049 92.458

12.005 3.845 53.282 0.801 46.162 42.705 3.457 92.512

12.004 4.328 53.282 0.901 51.958 48.028 3.930 92.437

12.004 4.815 53.282 1.001 57.796 53.351 4.445 92.309

12.004 5.306 53.281 1.101 63.688 58.663 5.025 92.110

12.004 5.798 53.281 1.201 69.603 63.980 5.622 91.922

12.004 6.296 53.281 1.301 75.578 69.308 6.270 91.704

12.003 6.797 53.279 1.401 81.589 74.639 6.950 91.482

12.003 7.301 53.279 1.501 87.635 79.961 7.675 91.243


18.006 0.034 53.281 0.000 0.612 0.011 0.602 1.741

18.006 0.355 53.282 0.102 6.390 5.429 0.961 84.965

18.005 0.667 53.282 0.202 12.011 10.758 1.254 89.561

18.005 0.981 53.283 0.302 17.665 16.086 1.579 91.062

18.005 1.292 53.284 0.402 23.265 21.409 1.855 92.026

18.005 1.609 53.285 0.502 28.961 26.733 2.228 92.305

18.005 1.924 53.285 0.601 34.644 32.046 2.598 92.501

18.004 2.239 53.286 0.701 40.317 37.375 2.943 92.701

18.005 2.555 53.287 0.801 46.011 42.709 3.301 92.825

18.004 2.877 53.287 0.901 51.802 48.033 3.770 92.723

18.003 3.180 53.287 1.001 57.246 53.357 3.889 93.206

18.004 3.513 53.287 1.101 63.254 58.664 4.590 92.743

18.004 3.832 53.287 1.201 68.984 63.992 4.992 92.764

18.004 4.151 53.287 1.301 74.736 69.326 5.410 92.761

18.003 4.472 53.287 1.401 80.514 74.655 5.859 92.723

18.003 4.794 53.286 1.501 86.312 79.977 6.335 92.661


9 March 17, 2016

5 Thermal Images Coilcraft Transformer

Thermal image was taken at 8Vin, 1.4A load when the board reaches equilibrium without airflow.

Thermal image was taken at 12Vin, 1.5A load when the board reaches equilibrium.


10 March 17, 2016


Pulse Transformer:



11 March 17, 2016

6 Waveform

6.1 Switching Waveform and Output Ripple

8Vin, 1.5A load. Ch1 measures primary switching waveform, Ch3 measures secondary switching

waveform, and Ch2 measures output ripple.




12 March 17, 2016



6.2 Load Transient

8Vin, 0.75A-1.5A load step. Ch2 measures output voltage, Ch4 measures output load current.


13 March 17, 2016




14 March 17, 2016

6.3 Start Up

8Vin, 1.5A load. Ch1 measures input voltage, Ch3 measures output voltage.



15 March 17, 2016


6.4 Short Circuit

8Vin, 0A load. Ch3 measures output voltage, Ch4 measures output current.


16 March 17, 2016




17 March 17, 2016

6.5 Bode Plot

8Vin, 1.5A load bode plot, 57.9 degrees phase margin, and 9.87dB gain margin.



18 March 17, 2016


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